Keep true lilies (Lilium) and daylilies (Hemerocallis) out of any home a cat can access. If your cat may have chewed, brushed against, or otherwise contacted one, call a veterinarian or emergency clinic immediately—even if your cat seems well. Identify the plant if you can, but do not delay the call; never induce vomiting unless a veterinary professional or poison-control operator tells you to.
Which poisonous plants pose the greatest risk to cats?
The word “lily” does not identify a single kind of plant. Plants with that name can contain different toxins and cause very different problems, so check the scientific name rather than judging by the common name alone.
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| Plant | Why it matters to cats | What to do after possible exposure |
|---|---|---|
| True lilies (Lilium species) | All parts may be involved, including leaves, stems, flowers, pollen, roots, and vase water. Exposure can cause acute kidney failure. | Contact a veterinarian or emergency clinic immediately, even if there are no symptoms. ASPCA: Lily; Pet Poison Helpline: Lilies |
| Daylilies (Hemerocallis species) | Can cause vomiting, loss of appetite, lethargy, kidney failure, and possibly death. | Seek veterinary advice immediately if exposure is possible. ASPCA: Day Lilies |
| Peace lily (Spathiphyllum) and calla lily (Zantedeschia) | These are not true lilies. Insoluble oxalate crystals can irritate the mouth and throat, causing drooling, pawing at the mouth, and vomiting. Swelling that affects breathing is rarer but possible. | Contact a veterinarian for guidance, especially if symptoms occur or breathing is affected. Pet Poison Helpline: Kittens and Lilies |
| Lily of the valley (Convallaria) | A separate serious hazard: cardiac glycosides can affect the heart, including causing an irregular heartbeat. | Treat suspected exposure as urgent and contact a veterinarian. ASPCA: Which Lilies Are Toxic to Pets? |
| Amaryllis, also called “lily of the palace” (Hippeastrum) | The bulb is the most poisonous part. Signs can include vomiting, salivation, and diarrhea; more serious signs are possible after large ingestions. | Contact a veterinarian or poison-control service for advice. ASPCA: Lily of the Palace |
There is no safe amount of true lily or daylily ingestion established here. Do not try to estimate risk from how much seems to be missing or wait to see whether symptoms develop.
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- Call a veterinarian or emergency veterinary clinic now. Explain what plant may be involved, what part your cat contacted, and when it happened. For possible true-lily or daylily exposure, do not wait for symptoms.
- Save the plant or take a clear photograph. Include flowers, leaves, and any label or packaging that may help establish its identity. If you are unsure what it is, say so rather than relying on a common name.
- Follow professional instructions. Do not induce vomiting or give a home remedy unless a veterinarian or poison-control operator specifically directs you to. Cornell cautions against inducing vomiting because some poisons can cause additional damage as they are vomited.
- Contact an animal poison-control service if appropriate. The ASPCA lists Animal Poison Control at (888) 426-4435 and says a consultation fee may apply. Do not let finding or calling a poison-control service delay contacting an emergency veterinarian.
Early veterinary treatment improves the chance of a better outcome after a true-lily or daylily exposure. Cats may look normal before serious illness becomes apparent, which is why suspected contact is enough to call.
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- Simple Daily Routine: For best results, apply spray to problem spots (sofa corners, rugs, curtains, doorways) once or twice daily during the first 1‑2 weeks. As your cat learns the boundary, reduce frequency; reapply after cleaning. This simple routine builds consistent habits even when you are away 5
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What symptoms should I watch for?
Symptoms depend on the plant, and their absence does not rule out poisoning. True lilies and daylilies can cause kidney injury; peace and calla lilies more commonly irritate the mouth and throat; lily of the valley can affect the heart. Vomiting, drooling, pawing at the mouth, reduced appetite, and lethargy are among the signs reported for these plants. Breathing difficulty or other severe symptoms warrant emergency care, but do not wait for any symptom before seeking advice about a possible true-lily or daylily exposure.
How can I reduce the risk at home?
Keep the highest-risk plants out
The strongest prevention is not to bring true lilies, daylilies, or lily of the valley into a home a cat can access. If such plants are present, complete isolation from the cat is safer than relying on a shelf, closed bouquet, or the cat’s past behavior. Even aging true-lily flowers can drop leaves and pollen into reach.
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Check the scientific name before bringing a plant home
Ask for the plant’s scientific name and compare it with a cat-specific reference. The ASPCA cat plant list separates toxic and non-toxic entries and includes scientific names. A list can help identify a plant, but it does not replace professional advice if exposure may have occurred.
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Do not assume a “lily” is safe—or equally dangerous
Different plants can share “lily” in their common names while having distinct risks. A peace lily is not a true lily, but it can still irritate a cat’s mouth and throat. Lily of the valley is a separate serious hazard. Confirm identity instead of making a safety decision from a label that only says “lily.”
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- Scratch & Chew Control: Designed as a no scratch spray for cats, this formula helps discourage scratching sofas, chewing furniture, jumping on unwanted areas and damaging household items. For better results, spray regularly on areas you want cats to avoid and use consistently as part of your daily pet care routine.
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How common are plant exposures?
Pet Poison Helpline reported in its 2022 “Top 5 Feline Toxins” document that plants represented approximately 14% of feline-related calls to that service. That figure describes the helpline’s calls—not the share of all cats or all poisonings affected by plants.
Quick Recap
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